But even spending 30 seconds planning some talking points makes conversations more fluid, with less awkward transitions, ...

DEL MAR, Calif. (AP) — Dick Tracy got an atom-powered two-way wrist radio in 1946. Marty Cooper never forgot it.

It changed how people around the world talk to each other — and don’t. Martin Cooper changed the world when he pioneered the portable phone. Credit: AP.

It changed how people around the world talk to each other — and don’t. ... DEL MAR, Calif. -- Dick Tracy got an atom-powered two-way wrist radio in 1946. Marty Cooper never forgot it.